Vanishing Oatmeal Chocolate Chip Cookie Bars

Name: Vanishing Oatmeal Chocolate Chip Cookie Bars
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American
Ingredients: 1/2 lb. softened ((2 sticks of butter)); 1 cup brown sugar (firmly packed ); 1/2 cup granulated sugar; 2 large eggs; 1 tsp. vanilla; 1&1/2 cups flour (all-purpose ); 1 tsp. baking soda; 1 tsp. cinnamon; 1/2 tsp. salt; 3 cups Quaker Oats ( - Quick or Old Fashioned - uncooked); 1 cup mini milk chocolate chips (such as Hershey's)